Donuka: San Francisco County, CA – Property Records

DATA SOURCES: 1. ONLY state sources (city/county/state administration, federal agencies, ministries, etc.). We DO NOT use unverified databases 2. Over 2300 sources. We use even the smallest sources, because they contain valuable data. This allows us to provide our users with the most complete data DATA RELEVANCE: 1. Our data is updated daily, weekly, monthly depending on the sources 2. We collect, process and store all data, regardless of their relevance. Historical data is also valuable DATA TYPES: 1. Specifications 2. Owners 3. Permits 4. Sales 5. Inspections 6. Violations 7. Assessed values 8. Taxes 9. Risks 10. Foreclosures 11. Property Tax Liens 12. Deed Restrictions NUMBERS: 1. 2300 data sources in total 2. 155,000,000 properties in total 3. 4 billion records (listed in the "data types" block above) in total 4. 2 million new records every day DATA USAGE: 1. Property check, investigation (even the smallest events are stored in our database) 2. Prospecting (more than 100 parameters to find the required records) 3. Tracking (our data allows us to track any changes)

搜集汇总

背景与挑战

背景概述

该数据集汇集了来自2300多个政府官方来源的旧金山县房产记录，覆盖规格、所有者、许可、销售、检查、违规、评估值、税收、风险、止赎、留置权和契约限制等12类数据。数据集包含约1.55亿处房产的40亿条记录，并以每日200万条的速度更新，支持房产调查、潜在客户挖掘和变更追踪等多种应用。